double_t - Online Linux Manual PageSection : 3type
Updated : 2022-12-15
Source : Linux man-pages 6.03

NAMEfloat_t, double_t − most efficient floating types

LIBRARYMath library (libm)

SYNOPSIS#include <math.h>typedef /* ... */ float_t; typedef /* ... */ double_t;

DESCRIPTIONThe implementation's most efficient floating types at least as wide as float and double respectively. Their type depends on the value of the macro FLT_EVAL_METHOD (defined in <float.h>): FLT_EVAL_METHODfloat_tdouble_t 0floatdouble 1doubledouble 2long doublelong double For other values of FLT_EVAL_METHOD, the types of float_t and double_t are implementation-defined.

STANDARDSC99 and later; POSIX.1-2001 and later.

SEE ALSOfloat.h(0p), math.h(0p)
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